urdream

ive got a mk1 ba xr6 na manual and I got 530k's full tank city driving. takes me about 45 mins to get to work on moderate traffic, that was when I had the high flow panel filter and the 2 1/2" catback exhaust. after I fitted pacemaker comp headers, metal substrate 3" highflow cat and the capa flash tuner, no custom tune yet, I got around 500k's. I have yet to drive it on the highway on a full tank. I averaged around 12.5l/t 100. im pretty impressed with the result considering I got alil more weight to carry with the subs in the rear.lol I reckon 350k's to the tank is 2 short for the way you drive, id be concerned with that result, there must be an issue with your mixture setup, have a look at your plugs, if they look too black of course that would indicate its running too rich and therefore require a checkup on all the parameters on the ecu's. take it to your ford dealer, and make sure you get a technician that KNOWS what he's doing :-) see how you go with that